Optional, version 2012-02-12 and newer. If specified, Set Container Metadata only succeeds if the container's lease is active and matches this ID. If there is no active lease or the ID does not match, 412 (Precondition Failed) is returned.

x-ms-meta-name:value

Optional. A name-value pair to associate with the container as metadata.

Each call to this operation replaces all existing metadata attached to the container. To remove all metadata from the container, call this operation with no metadata headers.

Note that beginning with version 2009-09-19, metadata names must adhere to the naming rules for C# identifiers.

Any operation that modifies the container or its properties or metadata updates the last-modified time, including setting the container's permissions. Operations on blobs do not affect the last-modified time of the container.

ms-request-id

This header uniquely identifies the request that was made and can be used for troubleshooting the request. For more information, see Troubleshooting API Operations.

x-ms-version

Indicates the version of the Blob service used to execute the request. This header is returned for requests made against version 2009-09-19 and above.

Date

A UTC date/time value generated by the service that indicates the time at which the response was initiated.

Access-Control-Allow-Origin

Returned if the request includes an Origin header and CORS is enabled with a matching rule. This header returns the value of the origin request header in case of a match.

Access-Control-Expose-Headers

Returned if the request includes an Origin header and CORS is enabled with a matching rule. Returns the list of response headers that are to be exposed to the client or issuer of the request.

Access-Control-Allow-Credentials

Returned if the request includes an Origin header and CORS is enabled with a matching rule that does not allow all origins. This header will be set to true.

Response Body

None.

Authorization

Only the owner may call this operation.

Remarks

Calling the Set Container Metadata operation overwrites all existing metadata that is associated with the container. It's not possible to modify an individual name-value pair.

You may also set metadata for a container at the time it is created.

Calling Set Container Metadata updates the ETag and Last-Modified-Time properties for the container. If the request was made using version 2011-08-18, the updated ETag will be in quotes.

See Also

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